diff --git a/vec.cc b/vec.cc
index ff5b5aa..01d524e 100644
--- a/vec.cc
+++ b/vec.cc
@@ -841,6 +841,12 @@ else for(int i=1; i<=n; ++i) r[p[i]-1] = v[i-1];
 return r;
 }
 
+template<typename T> 
+void NRVec<T>::permuteme(const NRPerm<int> &p, bool inverse)
+{
+NRVec<T> tmp=permuted(p,inverse);
+for(int i=0; i<size(); ++i) v[i] = tmp.v[i];
+}
 
 template<typename T>
 void NRVec<T>::permuteme(const CyclePerm<int> &p)
diff --git a/vec.h b/vec.h
index c71a0c3..80065c6 100644
--- a/vec.h
+++ b/vec.h
@@ -347,6 +347,7 @@ public:
 	//! permute vector elements
 	const NRVec permuted(const NRPerm<int> &p, const bool inverse=false) const;
 	void permuteme(const CyclePerm<int> &p); //in place
+	void permuteme(const NRPerm<int> &p, const bool inverse=false); //formally in place, but allocates a copy
 
 	//! compute the sum of the absolute values of the elements of this vector 
 	inline const typename LA_traits<T>::normtype asum() const;